People with learning disabilities are sometimes prescribed psychotropic medication to help manage their challenging behaviour. This case study describes how a multicomponent behavioural intervention in conjunction with the systematic withdrawal of sodium valproate was strongly correlated with reduced aggression. No symptoms of bipolar disorder or…

This paper introduces educators to CHARGE syndrome (CS), a multiple anomaly developmental syndrome that is usually accompanied by some degree of hearing and visual impairment. We describe the defining medical characteristics of the syndrome, and following this, outline the behavioral features commonly seen in individuals with CS. Throughout, we…

Two developmentally disabled children were held in seated position during application of timeout procedure. For autistic-like girl procedure produced dramatic reduction in tantrums and aggressive behavior and for mentally retarded boy reduced aggression. For both, immobilization timeout proved more effective than reinforcement methods alone. (CMG)

In school settings, behavior analysts are often called in to consult on severe behavioral issues that surpass the knowledge, experience, and training of local school personnel. Severe behavior such as aggression to staff, SIB, and property destruction are common severe behavior referrals. The benefits of functional assessments, functional…

Assessment of self-injurious behavior (SIB) in three individuals with developmental disabilities revealed that the behavior was an escape response maintained by negative reinforcement. Treatment consisted of extinction plus instructional fading and resulted in immediate and large reductions in SIB behaviors. Maintenance occurred as instruction…

We describe a training program to teach applied behavior analysis (ABA) knowledge competencies to paraprofessional staff (N = 47) at a habilitation services agency for adults with developmental disabilities. Before and following training, staff completed assessment of knowledge tests for three content areas: basic learning principles,…

The sleep-wake cycles of 4 developmentally delayed individuals (ages 3-19) with severe sleep disturbances were regulated using a faded bedtime procedure with response cost. Following treatment, all four increased their amounts of nighttime sleep; two decreased their excessive daytime sleep; and three decreased their night wakings. (Author/JDD)

Used time-in and time-out to reduce undesirable behaviors exhibited by a child with severe language disabilities and by a child with a moderate mental disability combined with cerebral palsy. Unwanted behaviors were reduced dramatically shortly after the initiation of intervention. Follow-ups indicated a continued high rate of compliance. (RJM)

A simultaneous presentation procedure to select reinforcers was implemented with two four-year-old twin boys who were developmentally delayed, noncompliant, and mute. Use of the procedure quickly and efficiently identified preferred reinforcers which were then used in an instructional task. (DB)

The self-injurious escape behavior of an adult with developmental disabilities was treated with extinction. Results of a reversal design showed substantial bursts of responding when extinction was introduced and reintroduced: self-injury remained at a variable and elevated rate for some time before stable, low rates were observed. (Author/DB)

Three individuals with severe behavior disorders and mental retardation, whose destructive behaviors were being maintained by positive reinforcement, were treated using functional communication training with extinction. The case studies investigated techniques used to increase effectiveness of delayed reinforcement and to teach individuals with…

A study of a man (age 19) with severe developmental disabilities evaluated the effects of implementing extinction for some problem behaviors of a functional response class, with and without reinforcement of an alternative communication response. Results found that using extinction and functional communication training reduced all topographies of…

A fading procedure was successfully used to maintain high levels of compliance obtained with presenting high-probability requests immediately antecedent to low-probability requests in both a 5-year-old boy with developmental disabilities and a 15-year-old girl with developmental disabilities (for whom rephrasing of "don't" requests to…

An adolescent with developmental disabilities who used a wheelchair was anecdotally observed to display little aggressive behavior when being pushed, but higher rates when movement was terminated. A functional analysis confirmed the elevated aggression and the child was taught to request movement through appropriate means. Aggression decreased…

Results of a functional analysis indicted that the hand mouthing of a woman with profound mental retardation was maintained by multiple sources of control (sensory stimulation and access to a leisure item). Hand mouthing, though maintained by automatic reinforcement, was also susceptible to social contingencies when exposed to them during…